Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Johan G, de Boer"'
Autor:
Kimberley Hodgson, Patrick B. Walter, Susan J. Murch, Brendan Quiney, Praveen K. Saxena, Cynthia Thomas, Johan G. de Boer
Publikováno v:
Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis. 578:15-22
We have measured the inhibition of the mutagenicity of the mycotoxin aflatoxin-B1 in the liver of the rat by plant material of Scutellaria baicalensis, or Huang-qin. The addition of one percent dried Huang-qin to the feed of the animals reduced the m
Publikováno v:
Nutrition and Cancer. 50:168-173
Prevention of esophageal cancer may be possible through dietary modification or supplementation. In this study we have investigated the mutation preventive properties of ellagic acid, green tea, and diallyl sulfide (DAS) against the mutagenicity of t
Autor:
Johan G. de Boer
Publikováno v:
Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis. 509:201-210
The repair of damage to DNA is critical to the survival of a cell. However, not all organisms nor all individuals express a similar response to challenges to their genetic material. Numerous polymorphisms in genes involved in DNA repair have been fou
Publikováno v:
Environmental and Molecular Mutagenesis. 40:116-121
The heterocyclic amine 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) is a recognized mutagen and carcinogen in the colon and prostate of male rats and in the mammary gland of female rats. In the current study, we examined the mutagenicity of
Autor:
Amanda Thornton, Haiyan Yang, Barry W. Glickman, Johan G. de Boer, Jana Kangas, James Holcroft, Roderick Haesevoets, Ken Sojonky, David Walsh, Gregory R. Stuart, Erika Thorleifson
Publikováno v:
Mutagenesis. 16:431-437
2-Amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) is a food-borne mutagen and carcinogen that induces tumors of the colon and the prostate gland in male rats and of the mammary gland in female rats. In this study we describe the frequency and sp
Publikováno v:
Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis. :147-151
We assessed the ability of green tea to protect against benzo[a]pyrene (B[a]P)-induced mutations in the liver of lacI transgenic male C57BL/6 Big Blue mice. The mice were given a 2% Japanese green tea hot water extract as their sole source of drinkin
Publikováno v:
Environmental and Molecular Mutagenesis. 37:141-146
Comparison of spontaneous mutation spectra derived from different transgenic constructs can provide valuable insights for interpreting the mechanisms of spontaneous mutation. In this study, spontaneous mutation frequencies and spectra of the lacI tra
Autor:
Gregory R. Stuart, Minako Nagao, Johan G. de Boer, Eriko Okochi, Erika Thorleifson, Toshikazu Ushijima, Barry W. Glickman
Publikováno v:
Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis. 452:101-121
The cII assay provides an alternative choice to the lacI transgene for mutational studies involving Big Blue(R) transgenic mice and rats, or permits the evaluation of mutational responses in both genes. Here, we compare the mutational response of the
Autor:
Anne Constable, Sandra A.M. Bol, Robert J. Turesky, Jovanka Markovic, Janine Horlbeck, Johan G. de Boer
Publikováno v:
Carcinogenesis. 21:1-6
The heterocyclic aromatic amine (HAA) 2-amino-3-methylimidazo[4, 5-f]quinoline (IQ) induces intestinal tumours and hepatocellular carcinomas in rats, but no tumourigenic effects have been identified in the kidney. The tissue-specific mutagenicity of
Autor:
Kathleen Dixon, Glenn Talaska, Anastasia Andringa, Marian L. Miller, Kersi Vasunia, Johan G. de Boer
Publikováno v:
Environmental and Molecular Mutagenesis. 35:319-327
The Big Blue mouse was used to investigate the role of cell proliferation in mutation fixation in the mouse back skin model of carcinogenesis. Phorbol 12-myristate 13 acetate (TPA) was applied to the dorsum of Big Blue mice to manipulate cell prolife